#include <stdio.h>

int main(void) {
    // printf("Hello, World!\n");
    int a,b,c,d;
    unsigned int u;
    a=12;
    b=-24;
    u=10;
    c=a+u;
    d=b+u;
    printf("a+u=%d,b+u=%d\n",c,d);
    return 0;
}
